package com.atguigu.gulimall.order.web;

import com.atguigu.common.exception.NoStockException;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.OrderConfirmVo;
import com.atguigu.gulimall.order.vo.OrderSubmitVo;
import com.atguigu.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;

/**
 * @Author 小坏
 * @Date 2021/2/2 19:56
 * @Version 1.0
 * @program: 父工程 gulimall 万物起源之地
 */

@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;


    @GetMapping("/toTrade")
    public String toTrade(Model model, HttpServletRequest request) throws ExecutionException, InterruptedException {
        //展示页面的OrderConfirmVo
        OrderConfirmVo orderConfirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData", orderConfirmVo);
        return "confirm";
    }

    /**
     * 整个下单返回、至少包含一个订单信息
     * 下单失败：还要来到页面显示什么原因失败、是重复提交请求、验价失败、还是库存不足、显示失败信息
     *
     * @param vo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes) {
        try {
            SubmitOrderResponseVo responsevo = orderService.submitOrder(vo);
            //下单：去创建订单，验令牌，验价格，锁库存
            //下单成功来到支付选项页
            //下单失败回到订单确认页重新确认订单信息
            System.out.println("订单提交的数据。。。" + vo);
            if (responsevo.getCode() == 0) {
                //下单成功来到支付选项页
                model.addAttribute("submitOrderResp", responsevo);
                return "pay";
            } else {
                String msg = "下单失败";
                switch (responsevo.getCode()) {
                    case 1:
                        msg += "订单信息过期,请刷新再次提交";
                        break;
                    case 2:
                        msg += "订单商品价格发生变化,请确认后再次提交";
                        break;
                    case 3:
                        msg += "库存锁定失败，商品库存不足";
                        break;
                }
                redirectAttributes.addFlashAttribute("msg", msg);
                //下单失败
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            if (e instanceof NoStockException) {
                String message = ((NoStockException) e).getMessage();
                redirectAttributes.addFlashAttribute("msg", message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
//        SubmitOrderResponseVo responsevo = orderService.submitOrder(vo);
//        //下单：去创建订单，验令牌，验价格，锁库存
//        //下单成功来到支付选项页
//        //下单失败回到订单确认页重新确认订单信息
//        System.out.println("订单提交的数据。。。" + vo);
//        if (responsevo.getCode() == 0) {
//            //下单成功来到支付选项页
//            model.addAttribute("submitOrderResp", responsevo);
//            return "pay";
//        } else {
//            String msg = "下单失败:";
//            switch (responsevo.getCode()) {
//                case 1: msg += "订单信息过期,请刷新再次提交"; break;
//                case 2: msg += "订单商品价格发生变化,请确认后再次提交";  break;
//                case 3: msg += "库存锁定失败，商品库存不足"; break;
//            }
//            redirectAttributes.addFlashAttribute("msg", msg);
//            //下单失败
//            return "redirect:http://order.gulimall.com/toTrade";
//    }
    }
}
